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diff --git a/src/ChangeLog b/src/ChangeLog
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--- a/src/ChangeLog
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@@ -1,3 +1,55 @@
+Wed Dec 29 08:18:08 WST 2004 John Darrington <john@darrington.wattle.id.au>
+
+	* percentiles.[ch] Added. Calculates percentiles and Tukey hinges
+
+	* examine.q factor_stats.[ch]  Added calculation of percentiles
+
+Fri Dec 24 15:09:11 WST 2004 John Darrington <john@darrington.wattle.id.au>
+
+	* t-test.q Fixed bug #11227 Made t-test work when the independent
+	variable is alpha
+
+Sat Dec 11 11:43:45 WST 2004 John Darrington <john@darrington.wattle.id.au>
+
+	* factor_stats.c Fixed calculation of trimmed mean under various
+	special conditions.
+
+Sat Dec  4 17:14:45 WST 2004 John Darrington <john@darrington.wattle.id.au>
+
+	* histogram.c chart.[ch] factor_stats.c frequencies.q
+
+	Added code to calculate sensible histogram ranges and limits.
+
+Thu Dec  2 13:37:43 WST 2004 John Darrington <john@darrington.wattle.id.au>
+
+	* chart.h Updated to reflect many API changes.
+
+	* cartesian.c chart.c Moved the definitions of chart_write_{xy}scale from 
+	cartesian.c and into chart.c
+
+	* factorstats.[ch] Added the histogram calculations
+
+	* casefile.c Removed an unused variable.
+
+	* frequencies.q examine.q histogram.c  Reworked the API for 
+	histograms.
+
+	* piechart.c  Revised the API for piecharts.
+
+	* var.h  Moved the definitions of freq_tab and freq out of var.h
+	and into frequencies.q where they belong.
+	
+Tue Nov 30 21:10:20 2004  Ben Pfaff  <blp@gnu.org>
+
+	* flip.c: (flip_file) Check for off_t separately from fseeko(),
+	using AC_TYPE_OFF_T.
+
+Tue Nov 30 08:47:41 2004  Ben Pfaff  <blp@gnu.org>
+
+	* flip.c: (flip_file) If fseeko() is not available, use long int
+	for off_t.  Thanks to "Marshall DeBerry" <mdb@radix.net> for
+	reporting the problem.
+
 Mon Nov 29 12:20:59 WST 2004 John Darrington <john@darrington.wattle.id.au>
 
 	* examine.q factor_stats.[ch] Changed stderr to se_mean to avoid